During puberty you fulfill your genetic potential that you inherited. That's the reason why some good-looking kids turn out ugly during puberty when things like their midface grow to their adult form according to their genetics. Not because they weren't eating the right kind of organic food or doing the wrong exercise LOL.

Some of the most good-looking people didn't have especially healthy unbringings and vice-versa. Saying things like 'I would have been a high-t gl slayer if' is pure coping.